Safety device for elevators.



No. 895,146.- j f PMLNTEDV AUG. 4, 19oa. J. W. BEACH.

SAFETY DEVGE P011 ELBVTcm.`

APPLICATION PILED APE. 5. 1991.

L 1: A al JAMES W. BEACH, Ol" CHICAGO, ILLINOIS SAFETY DEVICE FORELEVATORSL,"

Specification of Letters Patent.

mosaic-u w. nizacii. or moin,

Patented Aug. 4. 196e.IH

Appiicatitm sied April 5. 1907. semi-Neasesae." 1

To all ich om it may concern.:

Be it known that I, Janes W. BEACH, a

building and thc top of tho elevator cage,

citizen of the United States, residing at (.hicago, in the county ofCook and State of Ilii- 1 5 nois, have invented certain new and useful IImprovements in Safety Devices for Elevai tors, of which the `followingis e. specification. My invention relates to improvements in safetydevices for elevators, and the object.

of my improvements is to provide means which will prevent passengers andother persons from being killed or injured by the top of the eleva-torcave and the iloor of the buihli line Fig.

ing in which said cage is located. 15

In the drawing:-Figure l is a top plan view of an elevator cage equippedwith my safety device. elevator cage equipped with a safety device ofmodified construction. Fig. 3 is a crosssectional view taken on the line3-3 of Fig. '2.

Fig. 2 is a top plan view of an Fig. 4 is a cross-sectional view takenon the j Fig. 5 is a detail perspccl tive of an elevator cage made inaccordance -with my invention without a lintel over the entrance doorwayand indicating the relation vof the top opening to said doorway.

Referring to the drawing in detail:--"he reference numeral 8 indicatesthe top of the elevator cage, having secured thereto a cross.- beam 9,and having iu one side of said top an ciently hea-vier than the weightedcnd as to opening 10, preferably of rectangular form, w

iich said opening should be located directly above the entrance doorwayS of the ele vator cage and should be about the same width as seiddoorway (or wider) and extcnding from said doorway n ell inwardly towardf said beam 9, the top opening 10 being a practical continuation of thedoorway S.

other words, said entrance doorway of said 4o elevator cage has nopermanent lixed lintel or other dangerous obstruction over saidf causestheI same to quickly assume and retain entrance doorway.

Arranged to normally guard or close the weight. is indicated by 13.

Normally, this trap-door when closed engages :i stop 14,? constitutingrpractically a part of the top S, and assumes a horizontal position, asshown in Fig. 4.. suddenly while a passenger or other person is in thesaid entrance doorway, the :assenbeing ger or person aforesaid, insteado caught and crushed between the Hoor of the Should the elevator cagedescend i will engage the. trap-door, which said trapdoor will instantlyassumo a vertical position, as shown by the dotted line. 11 in Fig. 4.

In the inodihed construction shown in Figs. 2 and 3 the trap-doorconsists of a 1min-t` countcrweight. rl`hcse sections l5 normally assumea horizontal position, as shown in Fig. I5, but will also assume uponpressure being :ippliedto the outer loweibside thereof) a verticalposition, as shown by thc dotted From the foregoii'igr and withreference to thc drawings it will he aoparent that the pivot 12 islocated parallel to and adjacent to the imier edge of the top opening 10and just below thc plane of theclcvator cage top S. The inner end.therefore, of the door mechanism is held in normal position below thelower surface of said top S and the. outer or free end of said mechanismis prevented from moving below the normal position by contact of saidinner cud engaging withthe under side of the top S.

It is furthcrinorc to he noted thatA in its preferred embodiment my doormechanism is so mounted with res icct to the axis 12 that normallv thefree end thereof is just. snllian owen position until being reset to thenorinai norizontal position bythe operator of the cage.

Having thus described my invention, what I claim asnew, and desire tosecure by Letters-Patent is 1. In safety apparatus for elevators, thecombination of a cage having a vertical doorway and a top having ahorizontal opening in direct unobstructed communication with saiddoorway, e. horizontal axis located l elow and parallel to the inneredge of the said top 5 the mechanism 1n one anism pivoted intermediateits inner and ward movement of the outer end of the door outer ends ensaid axis, said inner end being mechanism.

ada ted to engage beneath the lower surface of 't e cage top to limit(pivotal movement of irection.

'2. In safety apparatus for elevators, the combination of a cage havinga vertical doorway and a top havinfr si horizontal opening in directunobstructe communication with 10 said doorway, a horizontal axislocated below and parallel to the inner edge of the said top opening,and norniallyhorizontal door mechanism pivoted intermediate its innerand outer ends on said axis, the mass of the door mech- 1 5ranisn1 beingso disposed with relation to the said exis that the center of gravitthereof is normally above and outward of 1.1 e axis but movable inwardlyover the axis upon up- 3. In safety apparatus for elevators, thecombination of a cage having avertical doorway and a top having ahorizontal openin in direLt unobstructed communication wit said doorway,and horizontal door mecham ism for nornmllv guarding said top o ening,said guard mechanism beingr pivote inter'-` mediate of its ends belowthe plane of the cage top and com )rising n plurality of independentlymovab e sections. 30

In testimony whereof I ahx my signature -in presence of two witnesses.

J AMES XV. BEACH. Vitneesz i o. K. Timo, W. o. Rom.

